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/*
* Copyright (C) 2016 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
importScripts(...[
"../../External/Esprima/esprima.js",
"CSSFormatter.js",
"ESTreeWalker.js",
"FormatterContentBuilder.js",
"FormatterUtilities.js",
"HTMLFormatter.js",
"HTMLParser.js",
"HTMLTreeBuilderFormatter.js",
"JSFormatter.js",
]);
FormatterWorker = class FormatterWorker
{
constructor()
{
self.addEventListener("message", this._handleMessage.bind(this));
}
// Actions
formatJavaScript(sourceText, isModule, indentString, includeSourceMapData)
{
let sourceType = isModule ? JSFormatter.SourceType.Module : JSFormatter.SourceType.Script;
// Format a JavaScript program.
const builder = null;
let formatter = new JSFormatter(sourceText, sourceType, builder, indentString);
if (formatter.success) {
let result = {formattedText: formatter.formattedText};
if (includeSourceMapData) {
result.sourceMapData = formatter.sourceMapData;
// NOTE: With the JSFormatter, multi-line tokens, such as comments and strings,
// would not have had their newlines counted properly by the builder. Rather then
// modify the formatter to check and account for newlines in every token just
// compute the list of line endings directly on the result.
result.sourceMapData.formattedLineEndings = result.formattedText.lineEndings();
}
return result;
}
// Format valid JSON.
// The formatter could fail if this was just a JSON string. So try a JSON.parse and stringify.
// This will produce empty source map data, but it is not code, so it is not as important.
try {
let jsonStringified = JSON.stringify(JSON.parse(sourceText), null, indentString);
let result = {formattedText: jsonStringified};
if (includeSourceMapData)
result.sourceMapData = {mapping: {original: [], formatted: []}, originalLineEndings: [], formattedLineEndings: []};
return result;
} catch { }
// Format invalid JSON and anonymous functions.
// Some applications do not use JSON.parse but eval on JSON content. That is more permissive
// so try to format invalid JSON. Again no source map data since it is not code.
// Likewise, an unnamed function's toString() produces a "function() { ... }", which is not
// a valid program on its own. Wrap it in parenthesis to make it a function expression,
// which is a valid program.
let invalidJSONFormatter = new JSFormatter("(" + sourceText + ")", sourceType, builder, indentString);
if (invalidJSONFormatter.success) {
let formattedTextWithParens = invalidJSONFormatter.formattedText;
let result = {formattedText: formattedTextWithParens.substring(1, formattedTextWithParens.length - 2)}; // Remove "(" and ")\n".
if (includeSourceMapData)
result.sourceMapData = {mapping: {original: [], formatted: []}, originalLineEndings: [], formattedLineEndings: []};
return result;
}
return {formattedText: null};
}
formatCSS(sourceText, indentString, includeSourceMapData)
{
let result = {formattedText: null};
const builder = null;
let formatter = new CSSFormatter(sourceText, builder, indentString);
if (formatter.success) {
result.formattedText = formatter.formattedText;
if (includeSourceMapData)
result.sourceMapData = formatter.sourceMapData;
}
return result;
}
formatHTML(sourceText, indentString, includeSourceMapData)
{
let result = {formattedText: null};
const builder = null;
const sourceType = HTMLFormatter.SourceType.HTML;
let formatter = new HTMLFormatter(sourceText, sourceType, builder, indentString);
if (formatter.success) {
result.formattedText = formatter.formattedText;
if (includeSourceMapData)
result.sourceMapData = formatter.sourceMapData;
}
return result;
}
formatXML(sourceText, indentString, includeSourceMapData)
{
let result = {formattedText: null};
const builder = null;
const sourceType = HTMLFormatter.SourceType.XML;
let formatter = new HTMLFormatter(sourceText, sourceType, builder, indentString);
if (formatter.success) {
result.formattedText = formatter.formattedText;
if (includeSourceMapData)
result.sourceMapData = formatter.sourceMapData;
}
return result;
}
// Private
_handleMessage(event)
{
let data = event.data;
// Action.
if (data.actionName) {
let result = this[data.actionName](...data.actionArguments);
self.postMessage({callId: data.callId, result});
return;
}
console.error("Unexpected FormatterWorker message", data);
}
};
self.formatterWorker = new FormatterWorker;
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